Patents Assigned to Danmarks Tekniske Universitet
  • Patent number: 9251601
    Abstract: One or more digital representations of single- (101) and/or few-layer (102) thin-film material are automatically identified robustly and reliably in a digital image (100), the digital image (100) having a predetermined number of color components, by—determining (304) a background color component of the digital image (100) for each color component, and—determining or estimating (306) a color component of thin-film material to be identified in the digital image (100) for each color component by obtaining a pre-determined contrast value (CR; CG; CB) for each color component and multiplying the respective background color component with a numerical difference between the pre-determined contrast value (CR; CG; CB) for a given color component and about 1,—identifying points or parts of the image with all color components being within a predetermined range of the determined or estimated color component.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: February 2, 2016
    Assignee: Danmarks Tekniske Universitet
    Inventors: Bjarke Sørensen Jessen, Mikkel Buster Klarskov, Lisa Katharina Tschammer, Timothy John Booth, Peter Bøggild
  • Publication number: 20160020016
    Abstract: The present invention relates to an integrated magnetics transformer assembly comprising a first magnetically permeable core forming a first substantially closed magnetic flux path and a second magnetically permeable core forming a second substantially closed magnetic flux path. A first input inductor winding is wound around a first predetermined segment of the first magnetically permeable core and a second input inductor winding is wound around a first predetermined segment of the second magnetically permeable core. The integrated magnetics transformer assembly further comprises a first output inductor winding comprising series coupled first and second half-windings wherein the first half-winding is wound around a second predetermined segment of the first magnetically permeable core and the second half-winding is wound around a second predetermined segment of the second magnetically permeable core.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 21, 2016
    Applicant: Danmarks Tekniske Universitet
    Inventors: Ziwei Ouyang, Michael A.E. Andersen
  • Patent number: 9239630
    Abstract: According to the present invention there is provided an input device (100) comprising a plurality of keys, at least one detection structure (107), and at least one display (104), wherein: each of the plurality of keys have a depressible key cap (101) with an at least semi-transparent top surface, the at least one detection structure is configured for detecting individual depression of each of the plurality of key caps, and the at least one display (104) is configured for providing image information of individual labels (103) for each key of the plurality of keys. Furthermore, the at least one display is arranged between the at least one detection structure (107) and the plurality of key caps, such that the individual labels (103) of the plurality of keys are viewable via the transparent top surfaces of the respective key caps.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: January 19, 2016
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Finn Pedersen, Jesper Glückstad
  • Patent number: 9222900
    Abstract: An X-ray diffraction method of mapping grain structures in a polycrystalline material sample, where an X-ray detector detects substantially line-shaped segments from beams diffracted from at least some of the grains. A processing device analyzes values received from the X-ray detector and identifies at least the position and the length of the line-shaped segments. The line-shaped segments are paired as originating from diffractions from the same grain and the positions of the paired line-shaped segments are used in determining the crystallographic grain position of this grain within in the polycrystalline material sample. The length of the paired line-shaped segments is used in determining a width of this grain.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 29, 2015
    Assignee: Danmarks Tekniske Universitet of Anker Engelundsvej
    Inventors: Erik Mejdal Lauridsen, Stefan Othmar Poulsen, Christian Holzner, Michael Feser
  • Patent number: 9222901
    Abstract: An X-ray diffraction method of mapping grain structures in a polycrystalline material sample, where an X-ray detector detects spots or line-shaped segments from beams diffracted from at least some of the grains. A processing device analyzes values received from the X-ray detector and identifies at least the position of the spots or line-shaped segments. The processing device discretizes an initial three-dimensional model of the polycrystalline material sample into voxels and reconstructs the grains in the model by iterative testing associating crystallographic orientations of the voxels to the detected spots or line-shaped segments.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: December 29, 2015
    Assignees: Danmarks Tekniske Universitet Anker Engelundsvej, CARL ZEISS X-RAY MICROSCOPY, INC.
    Inventors: Erik Mejdal Lauridsen, Stefan Othmar Poulsen, Peter Reischig
  • Publication number: 20150359464
    Abstract: Disclosed is apparatus and method for motion tracking of a subject in medical brain imaging. The method comprises providing a light projector and a first camera; projecting a first pattern sequence (S1) onto a surface region of the subject with the light projector, wherein the subject is positioned in a scanner borehole of a medical scanner, the first pattern sequence comprising a first primary pattern (P1,1) and/or a first secondary pattern (P1,2); detecting the projected first pattern sequence (S1?) with the first camera; determining a second pattern sequence (S2) comprising a second primary pattern (P2,1) based on the detected first pattern sequence (S1?); projecting the second pattern sequence (S2) onto a surface region of the subject with the light projector; detecting the projected second pattern sequence (S2?) with the first camera; and determining motion tracking parameters based on the detected second pattern sequence (S2?).
    Type: Application
    Filed: May 24, 2013
    Publication date: December 17, 2015
    Applicant: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Oline Vinter OLESEN, Rasmus LARSEN, Rasmus R. PAULSEN, Liselotte HØJGAARD
  • Publication number: 20150362718
    Abstract: There is presented to an up-conversion infrared telescope (110) arranged for imaging an associated scene (130), wherein the up-conversion infrared telescope (110) comprises a non-linear crystal (120) arranged for up-conversion of infrared electromagnetic radiation, and wherein a first optical component (101) has an entrance pupil with a first diameter D 1, and an optical component system which is arranged for forming an first image (136) of the back-focal plane (132) of the objective optical component (100), which has a diameter (given by the diameter of a circle enclosing all optical paths at the plane of the external image) which is denominated D2 and wherein D1 is larger than a second diameter D2 and wherein the telescope further comprises a third optical component (103) and a fourth optical component (104) arranged for re-imaging the first image into a second image of the back-focal plane (132) of the first optical component (101).
    Type: Application
    Filed: January 31, 2014
    Publication date: December 17, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventors: Jeppe Seidelin Dam, Christian Pedersen, Peter Tidemand-Lichtenberg, Nicolai Højer Sanders
  • Publication number: 20150355071
    Abstract: The present invention relates to a system for optical sorting of microscopic objects and corresponding method. An optical detection system (52) is capable of determining the positions of said first and/or said second objects. One or more force transfer units (200, 205, 210, 215) are placed in a first reservoir, the one or more force units being suitable for optical momentum transfer. An electromagnetic radiation source (42) yields a radiation beam (31, 32) capable of optically displacing the force transfer units from one position to another within the first reservoir (1R). The force transfer units are displaced from positions away from the first objects to positions close to the first objects, and then displacing the first objects via a contact force (300) between the first objects and the force transfer units facilitates an optical sorting of the first objects and the second objects.
    Type: Application
    Filed: February 4, 2014
    Publication date: December 10, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventor: Jesper GLÜCKSTAD
  • Publication number: 20150355227
    Abstract: The present invention relates to a microdevice (100) for emitting electromagnetic radiation onto an associated object. Simultaneous non-contact spatial control over the microdevice in terms of translational movement in three dimensions, and rotational movement around at least two axes, preferably three axes, is possible. The microdevice further comprises a nanowire (150) being arranged for emitting electromagnetic radiation onto said associated object. This is advantageous for obtaining better spatial control of the microdevice comprising the nanowire, and this enables that light could more effectively be coupled into the nanowire. This opens up for a much wider application of nanowires in optics because of the improved spatial control.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 10, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventor: Jesper GLÜCKSTAD
  • Publication number: 20150323440
    Abstract: The invention relates in particular to a device for determining one or more fluid properties of a fluid. The device preferably comprises a flow distributor comprising a cavity, an inlet to the cavity, one or more outlets from the cavity, and one or more flow deflecting elements present in the cavity and/or one or more flow dividing wall elements of the cavity, wherein the one or more flow deflecting elements and/or the flow dividing wall elements being arranged in such a manner that it provides sub-streams of different strength through the outlet. Furthermore, the device comprises an analyser downstream of the outlet of the flow distributor comprising means adapted to provide a read-out indicative of the strengths of sub-streams.
    Type: Application
    Filed: December 19, 2013
    Publication date: November 12, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventor: Fridolin Okkels
  • Patent number: 9184562
    Abstract: The present invention provides a light source (2) for light circuits on a silicon platform (3). A vertical laser cavity is formed by a gain region (101) arranged between a top mirror (4) and a bottom grating-mirror (12) in a grating region (11) in a silicon layer (10) on a substrate. A waveguide (18, 19) for receiving light from the grating region (11) is formed within or to be connected to the grating region, and functions as an 5 output coupler for the VCL. Thereby, vertical lasing modes (16) are coupled to lateral in-plane modes (17, 20) of the in-plane waveguide formed in the silicon layer, and light can be provided to e.g. photonic circuits on a SOI or CMOS substrate in the silicon.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 10, 2015
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventor: Il-Sug Chung
  • Publication number: 20150318074
    Abstract: The present invention relates to an ionic interpenetrating polymer network comprising at least one elastomer and an ionic supramolecular structure comprising the reaction product of at least two chemical compounds wherein each of said compounds has at least two functional groups and wherein said compounds are able to undergo Lewis acid-base reactions. The interpenetrating polymer network may be used as dielectric electroactive polymers (DEAPs) having a high dielectric permittivity.
    Type: Application
    Filed: December 4, 2013
    Publication date: November 5, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventors: Anne Ladegaard Skov, Soren Hvilsted, Lidia Gonzalez Burdalo
  • Publication number: 20150308221
    Abstract: The present invention relates to a method of providing a barrier in a fracture-containing system, comprising: i) Providing a treatment fluid comprising: a) a base fluid; b) an elastomeric material, wherein said elastomeric material comprises at least one polymer capable of crosslinking into an elastomer, and c) at least one crosslinking agent; ii) Placing the treatment fluid in a fracture-containing system; iii) Allowing the elastomeric material to crosslink with itself to form a barrier in said fracture-containing system; wherein the elastomeric material and/or the crosslinking agent are of neutral buoyancy with regard to the base fluid. The invention is contemplated to having utility not only in the oil-drilling industry but also in the plugging of fractures in sewer drains, pipelines etc.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 29, 2015
    Applicants: MAERSK OLIE OG GAS A/S, DANMARKS TEKNISKE UNIVERSITET
    Inventors: Anne Ladegaard Skov, Jens Henrik Hansen
  • Patent number: 9161993
    Abstract: The present application discloses a nanoparticle comprising compounds of the formula A-B-C(-D), wherein A designates an anchoring moiety having self-organizing properties in relation to the nanoparticle; B designates a cleavable linker; C designates an anionic moiety having a net charge of at least ?2 at pH 6.0; and D, which is optional, designates a polymer moiety which induces long circulating properties of the nanoparticle in mammalian tissue; and wherein the average net charge of the compounds is at least ?1 at pH 6.0. The application also discloses the individual compounds of the formula A-B-C(-D) as well as a drug delivery system comprising the self-organized nanoparticle having included in the interior thereof one or more pharmaceutically active agents and/or diagnostically relevant species, and a method of treating a cancerous or inflammatory condition in a mammal, involving the administration of the drug delivery system to the mammal.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: October 20, 2015
    Assignee: Danmarks Tekniske Universitet
    Inventors: Rasmus Irming Jølck, Jonas Rosager Henriksen, Torben Gjetting, Thomas Lars Andresen
  • Patent number: 9112082
    Abstract: The present invention relates to a single photon source 1800 comprising a tapered nanowire 1802, where the nanowire 1802 is made of a semiconductor material, a first electrode 1828 and second electrode 1814, where the electrodes are electrically coupled to a photon emitter 1804 embedded in the nanowire 1802 and wherein the photon emitter 1804 is capable of emitting a single photon when an activation voltage is applied between the electrodes. In advantageous embodiments of the invention, the nanowire is encircled by air or vacuum, such that advantage can be taken of the resultant large ratio between a refractive index of the nanowire and the encircling material, air. Another advantageous feature might be that the first and second electrodes are optically transparent, such that they can be used as part of a reflective element or anti-reflective element.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: August 18, 2015
    Assignees: DANMARKS TEKNISKE UNIVERSITET, COMMISSARIAT A L ENERGIE ATOMIQUE
    Inventors: Niels Gregersen, Julien Claudon, Jean-Michel Gérard
  • Publication number: 20150196895
    Abstract: The present invention concerns the absorption and desorption behaviour of carbon dioxide (CO2) using ionic liquids derived from amino acids adsorbed on porous carrier materials.
    Type: Application
    Filed: July 12, 2013
    Publication date: July 16, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventors: Rasmus Fehrmann, Anders Riisager, Helene Kolding, Saravanamurugan Shunmugavel
  • Publication number: 20150170872
    Abstract: The present invention relates to an assembly for holding a sample during characterisation of said sample in an electron microscope, the assembly comprising a feedthrough, a middle portion and a tip portion, wherein the tip portion comprises a frame structure, a light handling system attached thereto, and a temperature controlling arrangement also attached to the frame structure. The present invention further relates to a tip portion for the assembly for holding the sample.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 18, 2015
    Applicant: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Filippo CAVALCA, Thomas Willum HANSEN, Christian Danvad DAMSGAARD, Jakob Birkedal WAGNER, Thomas PEDERSEN, Ole HANSEN, Christoph LANGHAMMER
  • Publication number: 20150171597
    Abstract: Wavelength sweepable laser source is disclosed, wherein the laser source is a semiconductor laser source adapted for generating laser light at a lasing wavelength. The laser source comprises a substrate, a first reflector, and a second reflector. The first and second reflector together defines an optical cavity, and are arranged to support light oscillation in the optical cavity along an optical path in a direction normal to the substrate. The optical cavity comprises a void in the optical path. The second reflector is resiliently suspended by a suspension in a distance from the first reflector and having a rest position, the second reflector and suspension together defining a microelectromechanical MEMS oscillator. The MEMS oscillator has a resonance frequency and is adapted for oscillating the second reflector on either side of the rest position. The laser source further comprises electrical connections adapted for applying an electric field to the MEMS oscillator.
    Type: Application
    Filed: August 7, 2013
    Publication date: June 18, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventors: Kresten Yvind, Thor Ansbæk, Il-Sug Chung, Ole Hansen
  • Patent number: 8969238
    Abstract: The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 3, 2015
    Assignee: Danmarks Tekniske Universitet
    Inventors: Rasmus Fehrmann, Anders Riisager, Søren Birk Rasmussen, Steffen Buss Kristensen, Andreas Jonas Kunov-Kruse
  • Patent number: 8971361
    Abstract: Processing of incoherent electromagnetic radiation is described, said incoming incoherent electromagnetic radiation comprising radiation in a first wavelength interval. An arrangement comprises a focusing arrangement for focusing the incoming incoherent electromagnetic radiation, a first cavity configured to comprise an intra cavity laser beam, a nonlinear crystal arranged in the first cavity such that it is capable of receiving the focused incoherent electromagnetic radiation and, in dependence on the spatial overlap between the focused incoherent electromagnetic radiation and the intra-cavity laser beam, by interaction with the intra-cavity laser beam provide processed electromagnetic radiation, said processed electromagnetic radiation comprising radiation in a second wavelength interval. In other words, such an arrangement is capable of enabling imaging, e.g.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 3, 2015
    Assignee: Danmarks Tekniske Universitet
    Inventors: Christian Pedersen, Peter Tideman-Lichtenberg, Emir Karamehmedovic